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Word of the Day Wednesday, June 10, 2026

prefix

/prɪˈfɛks/ noun · British & US
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What does prefix mean?

noun

A letter or group of letters added to the beginning of a word to form a new word; a word or phrase added to the beginning of another word or phrase to indicate its meaning or origin.

Example

"The prefix 'un-' is added to the word 'happy' to form the word 'unhappy'."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for prefix

Rhymes with prefix

Etymologically related